Electricity Cost Calculator

Take control of your electric bill with Electricity Cost Calculator — the simple, accurate, and offline tool to estimate power consumption and electricity costs for any home appliance or electrical device.

Whether you want to know how much your air conditioner costs to run overnight, check the energy use of a refrigerator, or compare energy-saving appliances before buying, Electricity Cost Calculator gives you instant, transparent answers.

⚡ KEY FEATURES

• Instant Appliance Cost Calculator
Enter appliance wattage (or kW), daily usage hours, and your local electricity rate to instantly see daily, monthly, and custom billing period costs alongside total kWh consumption.

• Comprehensive Appliance Library
Organize and save all your household devices in one convenient place. Filter by room or category (Cooling, Kitchen, Entertainment, Heating, Laundry, Computing, Lighting). Includes typical wattage presets for popular appliances like AC units, refrigerators, smart TVs, washing machines, microwaves, water heaters, and desktop PCs.

• Whole-House Electricity Estimate
Combine multiple saved appliances into a complete household profile. See your total monthly energy consumption in kWh, overall cost, and a clear percentage breakdown showing which appliances consume the most electricity.

• Flexible Tariff Profiles & Tiered Rates
Support for both simple flat rates and advanced tiered (slab) electricity tariffs. Add utility provider details, service charges, fixed monthly fees, and taxes/surcharges to match your exact utility bill.

• Energy Saving Scenario Comparison
Compare two different appliances or usage habits side by side (Scenario A vs. Scenario B). Easily calculate how much money and kilowatt-hours you save by switching to energy-efficient inverter models or reducing daily usage.

• Saved Estimates History
Store calculation snapshots to review past estimates, track seasonal changes, or recalculate against updated utility tariffs with a single tap.

• Safe Data Backup & Restore
Export your appliances, tariff profiles, and saved estimates into a lightweight, versioned JSON backup file. Restore or migrate your data between devices anytime with merge or replace options.

• 100% Private & Offline
No account registration, no login, and no internet connection required for calculations. All your data stays securely on your device using a local database.

• Multi-Currency & Unit Support
Supports global currencies including USD ($), EUR (€), GBP (£), CAD ($), AUD ($), JPY (¥), INR (₹), and more with precise decimal formatting.

📊 FORMULAS USED
• Daily Energy (kWh) = (Power in Watts × Hours per Day) ÷ 1,000
• Period Energy (kWh) = Daily kWh × Billing Days
• Estimated Cost = Energy (kWh) × Rate per kWh

*Note: Calculations provide reliable estimates based on user-entered specifications and standard ratings. Actual appliance consumption may vary according to model efficiency, thermostat cycles, and utility billing policies.*

Download Electricity Cost Calculator today to understand your power consumption and start saving on your next electricity bill!

Recent changes:
• Fixed startup crash and improved app stability across Android versions.
• Updated to support Android 16 (API level 36) and Android 15.
• Added seamless edge-to-edge display with transparent system bars.
• Optimized memory and image loading performance.